Set of 4 coasters with raised edge to contain spills. Also works as a catchall or soap dish. 4.75" x 4"  /  12 cm x 11 cm Made from repurposed scrap bamboo and melamine Free of BPA, PVC, and all Phthalates Dishwasher-safe top rack / up to 70ºC or 158ºF Comes boxed Our bamboo tableware is durable, dishwasher safe, and very lightweight - making it ideal for outdoor entertaining as well as everyday use. The material is a mixture of bamboo, corn starch, and food grade melamine binder, with the bamboo utilizing the waste scrap from chopstick factories. The melamine binder ensures durability and increases the life span of the product, allowing our tableware to be used repeatedly. Manufacturing bamboo composite tableware requires little water and energy compared to ceramic tableware production.